Chapter 24 Flashcards
1) Which of following processes is the function of the smooth muscle layer of the digestive system?
a) Ingestion
b) Secretion
c) Mixing and propulsion
d) Absorption
e) None of these choices
c) Mixing and propulsion
2) Which of following processes is the primary function of the mouth?
a) Ingestion
b) Secretion
c) Mixing and propulsion
d) Absorption
e) None of these choices
a) Ingestion
3) Which of the following processes is the primary function of the villi of the small intestine?
a) Ingestion
b) Secretion
c) Mixing and propulsion
d) Absorption
e) None of these choices
d) Absorption
4) Which of the following accessory organs produces a fluid to soften food?
a) Teeth
b) Salivary glands
c) Liver
d) Gallbladder
e) Pharynx
b) Salivary glands
5) Which of the following accessory organs produces a fluid that functions to emulsify dietary fats?
a) Teeth
b) Salivary glands
c) Liver
d) Gallbladder
e) Pharynx
c) Liver
6) Which of the following accessory organs stores bile?
a) Teeth
b) Salivary glands
c) Liver
d) Gallbladder
e) Pharynx
d) Gallbladder
7) The capability of the GI tract to move material along its length is called
1. Motility
2. Propulsion
3. Digestion
4. Defecation
a) 1 only
b) 2 only
c) 3 only
d) 4 only
e) Both 1 and 2
e) Both 1 and 2
8) Which layer of the GI tract is composed of areolar connective tissue containing blood and lymph vessels?
a) Mucosa
b) Lamina propria
c) MALT
d) Muscularis
e) Epithelium
b) Lamina propria
9) Which layer of the GI tract is composed of areolar connective tissue that binds the mucosa to the muscularis?
a) Submucosa
b) Lamina propria
c) Epithelium
d) Serosa
e) None of these choices
a) Submucosa
10) Which layer functions by secreting a lubricating fluid?
a) Serosa
b) Submucosa
c) Muscularis
d) Mucosa
e) MALT
a) Serosa
11) Which structure is composed of prominent lymphatic nodules that function in the immune response?
a) Mucosa
b) Lamina propria
c) MALT
d) Submucosa
e) Serosa
c) MALT
12) Which plexus is located between the longitudinal and circular smooth muscle layers of the muscularis?
a) ENS
b) Myenteric plexus
c) Submucosal plexus
d) Digestive plexus
e) Absorption plexus
b) Myenteric plexus
13) Why do emotions such as anger or fear slow digestion?
a) Because they stimulate the parasympathetic nerves supplying the GI tract
b) Because they stimulate the somatic nerves that supply the GI tract
c) Because they stimulate the sympathetic nerves that supply the GI tract
d) They do not affect digestion
e) Because all emotions are controlled by the Vagus nerve
c) Because they stimulate the sympathetic nerves that supply the GI tract
14) Which portion of the peritoneum drapes over the transverse colon and coils of the small intestine?
a) Greater omentum
b) Falciform ligament
c) Lesser omentum
d) Mesentery
e) Mesocolon
a) Greater omentum
15) Which portion of the peritoneum attaches the liver to the anterior abdominal wall and diaphragm?
a) Greater omentum
b) Falciform ligament
c) Lesser omentum
d) Mesentery
e) Mesocolon
b) Falciform ligament
16) Which portion of the peritoneum is largely responsible for carrying blood and lymph vessels to the intestines?
a) Greater omentum
b) Falciform ligament
c) Lesser omentum
d) Mesentery
e) Mesocolon
e) Mesocolon
17) In the mouth, the tooth sockets are lined with
a) Gingivae
b) Cementum
c) Periodontal ligament
d) Pulp
e) Root
c) Periodontal ligament
18) Deciduous molars are replaced by
a) Bicuspids
b) Molars
c) Incisors
d) Canines
e) Wisdom teeth
a) Bicuspids
19) Which of the following layers of the GI tract contains skeletal muscle?
a) Muscularis
b) Mucosa
c) Serosa
d) Submucosa
a) Muscularis
20) How many stages of deglutition are there?
a) 2
b) 3
c) 4
d) 5
e) 8
b) 3
21) Which structure of the stomach allows greater distension for food storage?
a) Cardia
b) Fundus
c) Pylorus
d) Rugae
e) Sphincter
d) Rugae
22) Which of the following cells secrete hydrochloric acid?
a) Mucous cells
b) Parietal cells
c) Chief cells
d) Serosa cells
e) Chyme cells
b) Parietal cells
23) Which cell secretes the hormone that promotes production of hydrochloric acid?
a) Neck cell
b) Chief cell
c) G cell
d) Chyme cell
e) Parietal cell
c) G cell
24) How long can food stay in the fundus before being mixed with gastric juices?
a) 10 minutes
b) 20 minutes
c) 30 minutes
d) 45 minutes
e) 1 hour
e) 1 hour
25) Which major duct carries a fluid rich in bicarbonate ions?
a) Pancreatic duct
b) Hepatopancreatic duct
c) Cystic duct
d) Bile duct
e) Hepatic duct
a) Pancreatic duct
26) Which of the following pancreatic enzymes digests lipids?
a) Trypsin
b) Elastase
c) Lipase
d) Pepsin
e) All of these choices
c) Lipase
27) This of the following structures is found on the liver and is a remnant of the umbilical cord in a fetus?
a) Coronary ligament
b) Falciform ligament
c) Round ligament
d) Kupffer ligament
e) Bile ductules
c) Round ligament
28) Which of the following is the principle bile pigment?
a) Stercobilin
b) Bilirubin
c) Biliverdin
d) Both Stercobilin and Bilirubin
e) All of these choices
b) Bilirubin
29) Which of the following is NOT a function of the liver?
a) Conversion of carbohydrates
b) Protein metabolism
c) Storage of bilirubin
d) Phagocytosis
e) Storage of vitamins
c) Storage of bilirubin
30) Which of the following small intestine cells secrete lysozyme?
a) Goblet cells
b) Absorptive cells
c) Mucosa cells
d) Paneth cells
e) S cells
d) Paneth cells